Notochord - Wikipedia The notochord is a long, rod-like midline structure that develops dorsal to the gut tube and ventral to the neural tube The notochord is composed primarily of a glycoproteins core that is encased in a sheath of collagen fibers
Notochord: Definition, Function and Structure | Biology Dictionary The notochord is an elastic rod which extends through Chordate organisms, providing rigid support In the more derived Chordates, the Vertebrates, the notochord is replaced by the vertebral column, and becomes the cartilaginous substance between vertebrae
The notochord: structure and functions - PMC The notochord is an embryonic midline structure common to all members of the phylum Chordata, providing both mechanical and signaling cues to the developing embryo In vertebrates, the notochord arises from the dorsal organizer and it is critical for proper vertebrate development
Notochord | Embryonic, Vertebrate, Development | Britannica notochord, flexible rodlike structure of mesodermal cells that is the principal longitudinal structural element of chordates and of the early embryo of vertebrates, in both of which it plays an organizational role in nervous system development
Notochord | Radiology Reference Article | Radiopaedia. org The notochord represents the earliest fetal axial skeleton, extending from the Rathke pouch to the coccyx It is a primitive cell line from which the skull base and vertebral column develop The notochord is cylindrical and is replaced by sclerotomes that produce cartilage, and subsequently bone
Notochord: Definition, Types, Function I ResearchTweet What is Notochord? In anatomy, the notochord is a flexible rod formed of a material similar to cartilage If a species has a notochord at any stage of its life cycle, it is, by definition, a chordate
The notochord: Current Biology - Cell Press What is the notochord? The notochord is the defining structure of the phylum Chordata, which includes all vertebrates In its ‘mature’ state the notochord is a rod of large cells constrained by a thick extracellular sheath and positioned between the developing spinal cord and gut
Notochord - Embryology It is an early forming midline structure in the trilaminar embryo mesoderm layer initially ventral to the ectoderm, then neural plate and finally neural tube This is a transient embryonic anatomy structure, not existing in the adult, required for patterning the surrounding tissues
Notochord | definition of notochord by Medical dictionary n A flexible rodlike structure that is present in the embryos of all chordates and in the adult forms of certain groups, such as the lancelets and hagfishes The notochord develops into the spinal column in most vertebrates
The notochord: structure and functions - PubMed The notochord is an embryonic midline structure common to all members of the phylum Chordata, providing both mechanical and signaling cues to the developing embryo In vertebrates, the notochord arises from the dorsal organizer and it is critical for proper vertebrate development